Spark arrestee



(No Model.)

. G. S. COOK.

SPARK ARRESTER.

No. 253,346. Patented Feb. 7,1882.

WITNESSES: NVT- N RF. {236g WM BY M S I ATTORNEYS.

I UNITED STATES PATENT OFFICE.

GEORGES. COOK, OF WINDSOR, NOVA SGOTIA.

SPARK-ARRESTER.

SPECIFICATION forming part of Letters Patent No. 253,346, dated February 7, 1882,

Application filed June 13,1881. N0 model.)

To all whom it may concern:

Be it known that I, GEORGE S. 0001:, of Windsor, Nova Scotia, have invented a new and useful Improvement in Spark-Arresters, of which the following is a specification.

The object of my invention is the production of an efficient spark-arrester for locomotives, and one which can be easily secured in stacks of ordinary construction and easily removed for repairs or for other purposes.

In the drawing, the figure represents a central vertical section of a smoke-stack containing my improved spark-arrester.

The lower ring or plate, A, is formed preferably with the upturned circumferential flange a, which is provided with holes for bolting or riveting the same to the interior of the smokestack B. The inner edge of this plate is .formed with the downward flange a, to form an annular chamber for the sparks upon the under side of the plate. Supported by and above this ring, by means of the posts 0 c, is the annular plate 0, which is of smaller diameter than the plate A, and is formed with the outside and inside downward flanges, c o.

The ring D is of similar construction to the ring 0, only smaller in diameter, and is 'supserves to arrest the sparks that pass the annular plates.

Thus constructed and arranged, therings and plate F arrest all of the sparks and deflect them back into thestack, and at the same time furnish sufficient room for the passage of the smoke and steam and not interfere with the draft.

Instead of forming the ring A with the upturned flange a for securing the arrester to the interior of the stack, it is obvious that any other suitable means for this purpose may be employed; also, that the upper-rings might be supported by arms or other supports reaching to the inner walls of the stack and not depart from the spirit of my invention.

Before the sparks reach the smoke-stack they are alive or incandescent; but in coming against the plates of the arrester they are broken and killed and drop back into the stackin small particles.

I'am aware that it is not broadly new to arrange a series of circular plates within asmokestack to form a spark-arrester.

Having thus described myinventionJ claim as new and desire to secure by Letters Patent- 1. The spark-arrester herein shown and described, composed of the series of annular flanged plates of gradually-diminishing diameter secured in the stack and supported upon posts one above the other, the whole being surmounted by the solid plate F, all constructed and arranged substantially as shown and described.

2. The annular plates 0, D, and E, formed with downwardly-proiecting flanges, in combination with the flanged plate A and the flanged solid plate F, said plates being arranged one above the other and supported upon posts, substantially in the manner and for the purposes herein described.

GEORGE SINCLAIR COOK.

-Witnesses: Y

JOSEPH D. GROWELL, HENRY G. DAVIDSON. 

